Preparation Strategy to Crack Pump Operator- 15

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KPSC Pump Operator Exam 2020 will be conducted on the end of 2021, Aspirants have additional time to revise the syllabus and enhance exam preparation.

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Electrical Previous Questions – Transformer

1. Efficiency of a Transformer is the order of.....?
2. The rating of transformer expressed in.....?
3. Stepped core arrangement in larger transformer reduce....?
4. The transformer used for AC welding is.....?
5. A transformer has maximum efficiency at full load, when iron losses are 800 watts copper losses at half load will be....?
6. Power transformer are designed for maximum efficiency occurs at.....?
7. In tansformer zero voltage regulation at full load is possible at..?
8. In a 3 phase 5kV 5MVA system, what is the base impedence?
9. The standard value of secondary current of current transformer is....?
10. A transformer steps up the voltage by a factor 100. the ratio of current in the primary to that in the secondary is....?

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